Enter the character selection screen. Highlight Spiral and wait three 
seconds. Then, highlight the following characters in order: Silver 
Samurai, Psylocke, Colossus, Iceman, Colossus, Cyclops, Wolverine, and 
Omega Red. Finally, highlight Silver Samurai, wait three seconds and press 
LK + HK + HP. Akuma will appear in place of Silver Samurai to confirm 
correct code entry. To fight as Akuma as player two, highlight Storm and 
wait three seconds. Then, highlight Cyclops, Colossus, Iceman, Sentinel, 
Omega Red, Wolverine, Psylocke, and Silver Samurai. Then, highlight 
Spiral, wait three seconds, and press LK + HK + HP.